Angularly adjustable square holder

ABSTRACT

A holder composed of rotatively adjustable sections or halves each adapted to detachably support a square, such as a framing square, and combining with the two squares to provide a protractor-like instrument capable of supporting the blades of the squares at different desired angles relative to one another for use in accurately lining up pipes preparatory to joining the pipes by welding. An outer side of each holder half is grooved to adjustably receive a blade of one of the squares which is clamped therein. The holder halves are capable of being clamped together in different rotatively adjusted positions for accurately positioning the other blades of the two squares at desired angles relative to one another.

United States Patent [151 3,670,418 Hamilton, Jr. [4 June 20, 1972 [54]ANGULARLY ADJUSTABLE SQUARE 1,920,839 8/1933 Cattaneo ..33 174 .1

HOLDER Primary Examiner-Harry N. Haroian Attorney-John N. Randolph [57]ABSTRACT A holder composed of rotatively adjustable sections or halveseach adapted to detachably support a square, such as a framing square,and combining with the two squares to provide a protractor-likeinstrument capable of supporting the blades of the squares at differentdesired angles relative to one another for use in accurately lining uppipes preparatory to joining the pipes by welding. An outer side of eachholder half is grooved to adjustably receive a blade of one of thesquares which is clamped therein. The holder halves are capable of beingclamped together in different rotatively adjusted positions foraccurately positioning the other blades of the two squares at desiredangles relative to one another.

6 Claims, 1 1 Drawing Figures PATENTEDaunzo m2 3,670,418

' sum 10F 2 INVENTOR DAVID G. HAMILTONJR.

ATTORNEY 'PZTEN'TEDJum m2 sum 2 or 2 INVENTOR DAVID G. HAMILTON,JR.

ATTORNEY ANGULARLY ADJUSTABLE SQUARE HOLDER SUMMARY It is a primaryobject of the present invention to provide a device of extremely simpleconstruction capable of supporting two conventional squares with theblades of the squares at different desired angles relative to oneanother to provide a protractor-like instrument which may be effectivelyemployed in lining up pipe joints prior to welding.

Another object of the invention is to provide means for accuratelyclamping the holder halves together in different rotatively adjustedpositions relative to one another for accurately locating the blades ofthe two squares at predetermined angles relative to one another.

Various other objects and advantages of the invention will hereinafterbecome more fully apparent from the following description of thedrawings, illustrating a presently preferred embodiment thereof, andwherein:

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top plan view of one sideof the holder;

FIG. 2 is a top plan view of the opposite side thereof;

FIG. 3 is a plan view of the inner side of one of the holder halves;

FIG. 4 is a plan view of the inner side of the other holder half;

FIG. 5 is an enlarged edge elevational view looking from top to bottomof FIG. 1;

FIG. 6 is an enlarged sectional view through the holder, takensubstantially along a plane as indicated by the line 6-6 of FIG. 1; and

FIGS. 7 through 11 are plan views showing the holder with the squaresattached thereto and disposed in different angularly adjusted positions,to illustrate some of the many uses of the device for lining up pipejoints for welding.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring more specifically tothe drawings, and first with reference to FIGS. 1 to 6, the squareholder in its entirety and comprising the invention is designatedgenerally 12 and includes two discs 13 and 14 of the same diameter.

The disc 13 has an outer side 15 provided with two walls 16 and 17 andwhich protrude therefrom or are embossed thereon. Walls 16 and 17converge to form a right angle. An opening 18 is formed in the center ofthe disc 13 at the apex of the walls 16 and 17, as seen in FIG. 6. Thesurface 15 also has embossed thereon walls 19 and 20 each of whichextends around a portion of the periphery of the disc, and which arelikewise disposed at right angles to one another. An inner surface ofthe wall 19 faces an outer surface of the wall 16 to form a groove orchannel 21 therebetween. Similarly, an inner surface of the wall 20faces an outer surface of the wall 17 to form a groove 22 therebetween.The wall 19 is thicker than the wall 20 so that the groove 22 is widerthan the groove 21. A part of the outer surface 15 at the periphery ofthe disc 13 and between adjacent ends of the walls 19 and 20 provides aportion 23 defining an arc of 90 through which adjacent ends of the twogrooves 21 and 22 open, so that both grooves are open at both ends, fora purpose that will hereinafter become apparent. The walls 19 and 20have radial bores 24 to receive setscrews 25 and 26, respectively, whichextend inwardly therethrough.

The inner face 27 of the disc 13, as seen in FIG. 3, has eight radialgrooves 28 extending between the central opening 18 and its periphery,and which are equally spaced from one another an angles of 45. As seenin FIG. 5, the grooves 28 are of V-shaped cross section or endelevation.

As seen in FIG. 2, the outer side 29 of the disc 14 has walls 30 and 31corresponding to the walls 16 and 17, respectively, and walls 32 and 33corresponding to the walls 19 and 20, respectively, to form grooves orchannels 34 and 35, corresponding to the grooves or channels 21 and 22,respectively. The surface 29 has a portion 36 corresponding to thesurface portion 23. Walls 32 and 33 have threaded bores 37,corresponding to the bores 24, for receiving setscrews 38 and 39,corresponding to the setscrews 25 and 26, respectively. The inner face40, as seen in FIG. 4, has a threaded stud 41 projecting perpendicularlyfrom the center thereof, and is provided with four equally spaced radialribs 42 which extend from the stud to its periphery, and which arelikewise of V- shaped cross section or end elevation to fit into grooves28.

To assemble the discs 13 and 14 together, the stud 41 is passedoutwardly through the bore 19 and one or the other of the discs isrotated until the four ribs 42 can seat in four of the grooves 28 toposition the faces 27 and 40 in abutting engagement, as seen in FIGS. 5and 6. A washer 43 engages the stud 41 and is disposed between a thumbnut 44, carried by the stud, and the surface of the apex of the walls 16and 17 surrounding the opening 18, so that when the nut 44 is loosenedthe discs can be separated sufficiently to allow one of the discs to berotated relative to the other for changing the angular positions of thegrooves 21,22 relative to the grooves 34,35. The eight grooves 28 enablethe discs to be set at eight different angularly adjusted positionsrelative to one another at 45 angles, and when the nut 44 is tightenedwith the ribs 42 engaging alternate ones of the grooves 28, said discsare clamped in any one of the eight aforementioned angularly adjustedpositions.

Referring to FIGS. 7 to l 1, each disc 13 and 14 is adapted to support ablade of a conventional square such as the framing squares 45 and 46.Said squares each includes a narrow blade 47 and a wider blade 48. Thegrooves 21 and 34 are of a width to accommodate the narrow blades 47 andthe grooves 22 and 35 are of a width to accommodate the wider blades 48which are clamped therein by tightening the setscrews 25, 26, 38 and 39which are associated with said grooves.

In FIGS. 7 to 11, the wider blades 48 are shown clamped in the widergrooves 22 and 35 although it will be apparent that the narrower blades47 could be clamped in the narrow grooves 21 and 34.

In FIG. 7, a pipe 49 is shown positioned against the outer edge of oneblade 47 and a flange 50 is positioned on an end of the pipe 49 andagainst the inner edge of the other blade 47, correctly disposed forwelding. The two blades 47 and the two blades 48 are disposed at rightangles to one another.

In FIG. 8, thetwo blades 47 and the two blades 48 are also shown atright angles to one another but differently positioned with respect totheir positions of FIG. 7. Pipes 51 and 52 are shown in position alongand against the outer edges of the blades 47 and a elbow 53 is shownpositioned between and abutting adjacent ends of the two pipes 51 and52, preparatory to welding the elbow to said pipe ends. The positioningof the squares 45 and 46 in FIGS. 7 and 8 can be accomplished withoutangularly adjusting the discs 13 and 14 relative to one another, andsimply by rotating the blade 48 of the square 45 a half revolution aboutits axis and varying its position lengthwise of the groove 22.

In FIG. 9, the discs 13 and 14 have been angularly adjusted to positionthe grooves 22 and 35 and the blades 48 at an angle of 45 to oneanother, so that the blades 47 will form an angle of Two pipes 54 and 55are positioned against the outer edges of the blades 47 and a 45 elbow56 is disposed between and in abutting engagement with the adjacent endsof the pipes 54 and 55 prior to being welded to said pipe ends.

In FIGS. 10 and 11, the discs 13 and 14 have been adjusted to positionthe wide grooves 22 and 35 parallel to one another to receive the blades48. In FIG. 10, the blades 47 are disposed in alignment with one anotherfor aligning the two pipes 57 and 58 which are disposed against theouter edges of said blades and with their adjacent ends abuttingpreparatory to welding said abutting ends together. In FIG. 1 1, theblades 48 are clamped in the grooves 22 and 35 so that the blades 47 areparallel to but offset relative to one another. A pipe 59 is disposedagainst and along the outer edge of the blade 47 which is disposed moreremote from the holder 12 and one end of a 90 elbow 60 abuts the outeredge of the other blade 47, for accurately positioning its opposite endin abutting engagement with an end of the pipe 59 for welding said lastmentioned elbow end to the pipe.

Various modifications and changes are contemplated and may be resortedto, without departing from the function or scope of the invention.

I claim as my invention:

1. A square holder comprising two members, means rotatively connectingsaid members together in parallel relation to one another, said membershaving outer parallel surfaces each provided with an open ended groovetherein to receive a blade of a square, means for adjustably clampingsaid squares in said grooves and means for adjustably securing saidmembers together with said grooves and the blades received therein indifferent angularly adjusted positions relative to one another forpositioning the other blades of the squares at different desired anglesrelative to one another.

2. A square holder as in claim 1, said members each comprising a disc,one of said discs having a central opening, and a stud projectingperpendicularly from the center of the other disc and extending throughand being tumably disposed in said opening and constituting said meansfor rotatively connecting the discs.

3. A square holder as in claim 2, said stud being threaded, and a nutthreadedly engaging the stud and combining therewith to form said meansfor securing the discs together with the grooves in different angularlyadjusted positions relative to one another.

4. A square holder as in claim 3, the inner face of one of said discshaving a radially extending rib, and the inner face of the other dischaving a plurality of radially extending grooves selectively receivingsaid rib for accurately positioning the blade receiving grooves of thetwo discs in different angularly adjusted positions relative to oneanother.

5. A square holder comprising two members, means rotatively connectingsaid members together in parallel relation to one another, said membershaving outer sides each provided with a groove to receive a blade of asquare, means for adjustably securing said members together with saidgrooves and the blades received therein in different angularly adjustedpositions relative to one another for positioning the other blades ofthe squares at different desired angles relative to one another whereineach of said members having a second blade receiving groove convergingwith the first mentioned groove thereof and disposed at a right anglethereto, said second grooves being of a different width than the firstmentioned grooves for accommodating a square blade of a different widththan the square blades accommodated in said first mentioned grooves.

6. A square holder as in claim 5, said grooves of each member havingopen ends opening outwardly of marginal portions of said member.

1. A square holder comprising two members, means rotatively connectingsaid members together in parallel relation to one another, said membershaving outer parallel surfaces each provided with an open ended groovetherein to receive a blade of a square, means for adjustably clampingsaid squares in said grooves and means for adjustably securing saidmembers together with said grooves and the blades received therein indifferent angularly adjusted positions relative to one another forpositioning the other blades of the squares at different desired anglesrelative to one another.
 2. A square holder as in claim 1, said memberseach comprising a disc, one of said discs having a central opening, anda stud projecting perpendicularly from the center of the other disc andextending through and being turnably disposed in said opening andconstituting said means for rotatively connecting the discs.
 3. A squareholder as in claim 2, said stud being threaded, and a nut threadedlyengaging the stud and combining therewith to form said means forsecuring the discs together with the grooves in different angularlyadjusted positions relative to one another.
 4. A square holder as inclaim 3, the inner face of one of said discs having a radially extendingrib, and the inner face of the other disc having a plurality of radiallyextending grooves selectively receiving said rib for accuratelypositioning the blade receiving grooves of the two discs in differentangularly adjusted positions relative to one another.
 5. A square holdercomprising two members, means rotatively connecting said memberstogether in parallel relation to one another, said members having outersides each provided with a groove to receive a blade of a square, meansfor adjustably securing said members together with said grooves and theblades received therein in different angularly adjusted positionsrelative to one another for positioning the other blades of the squaresat different desired angles relative to one another wherein each of saidmembers having a second blade receiving groove converging with the firstmentioned groove thereof and disposed at a right angle thereto, saidsecond grooves being of a different width than the first mentionedgrooves for accommodating a square blade of a different width than thesquare blades accommodated in said first mentioned grooves.
 6. A squareholder as in claim 5, said grooves of each member having open endsopening outwardly of marginal portions of said member.